Avoiding aggro from mobs

This is a general idea how to avoid combat but it works for me...

Occasionly youl will see a mob that has a pet like a cat boar or wolf.
These mobs - the pets - do not normally aggro onto your player, but if you get close enough to aggro the main mob controlling it, you will.

Also, more on this - if you use crowd control like sleep sap or sheep on the pet, you can kill the main mob and when you leave combat and the pet loses cc, usualy it will run back to where its owner died and then despawn